<http://schema.org/query-input>
"required name=search_keywords"^^<http://www.w3.org/2001/XMLSchema#string>
<http://ejaba.net/2380/%D9%85%D8%A7-%D9%87%D9%8A-%D9%84%D8%BA%D9%87-%D8%A7%D9%84%D8%A8%D8%B1%D8%A8%D8%B1>